> ## Documentation Index
> Fetch the complete documentation index at: https://docs.maia.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Flex connectors

export const maia = "Maia";

In Custom Connector, you can create custom data source connectors to build data pipelines across {maia}. There are two types of custom connector you can use: a standard Custom connector and a Flex connector.

A standard custom connector contains no information and must be configured completely by the user.

A Flex connector is a preconfigured connector that already includes certain authentication options and parameters for a given third-party endpoint. A variety of Flex connectors are available in {maia} for you to use, and are accessed from the **Sources** tab of the **Choose source** step of the **Add pipeline** wizard.

A created Flex connector will be selectable from the **Custom Connectors** tab after creation.

If a connector is not yet available for the data source you wish to connect to, you will have configure a standard custom connector. Read [Custom connector setup](/docs/guides/custom-connector-setup) to learn more.

<Note>
  When creating a custom connector, you need to know how to authenticate with the service that you wish to extract data from.
</Note>

<Note>
  Custom Connector only works with REST APIs that return data in JSON format. Custom Connector will display an error when unable to parse the response, such as when receiving XML data.
</Note>

***

## Video example

Expand this box to watch our video about using Query connectors.

<iframe width="560" height="315" src="https://www.youtube.com/embed/cBQRi7-wWMM?si=n3kSo0JMbH029l0I&enablejsapi=1" title="YouTube video player" frameBorder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" referrerPolicy="strict-origin-when-cross-origin" allowFullScreen />

***

## Allowing IP addresses

You may need to allow the following IP addresses before using Flex connectors:

UK and EU region:

```
54.170.20.65
54.78.158.207
54.220.6.172
```

US region:

```
35.169.135.95
44.207.18.4
3.219.107.19
```

***

## Request a connector

Is there a source or destination connector you'd like us to add? Complete our [Request a connector](https://pages.matillion.com/product_matillion-data-productivity-cloud-connector-request.html) form and we will be in touch.